Put a ring on it.

SMOOCH
Lovesick Expo
What: The gathering of edgy wedding vendors (florists, photographers, DJs) will make even the most unconventional couples gush with delight.
Why: Mug for the camera at Wren & Field’s free photo booth.
When: Sun., 10 a.m.-3 p.m.
Where: World Cafe Live, 3025 Walnut St. (215-222-1400). Tickets ($6.50) online at lovesickexpo.eventbrite.com.

DINE
The Dandelion Opens
What: If you weren’t invited to Will and Kate’s wedding, console yourself with fish-and-chips, hearty soups, and other Brit-inspired pub fare at Stephen Starr’s latest eatery.
Why: A traditional afternoon tea service (coming soon) with cakes, scones, and biscuits makes commoners feel like royalty.
When: Mon.-Thurs., 5-11 p.m.; Fri. & Sat., 5 p.m.-midnight; Sun., 5-10 p.m. (Hold tight for brunch and lunch hours.)
Where: 124 S. 18th St. (215-558-2500).

RECYCLE
Holiday Treecycling
What: Instead of tossing your fir out on the curb, strip it of its finery and drop it off at one of many locations throughout the city.
Why: Wood chips get sprinkled on dog runs, parks, and community gardens. (It sure beats a landfill fate.)
When: Sat., 9 a.m.-3 p.m.; Sun., 9 a.m.-4 p.m.
Where: Locations online at nextgreatcity.com. Suggested donation is $5.

STROLL
Second Saturday
What: Stop for a beer tasting at The Bottle Shop, check out art openings, and hit boutiques for killer postholiday sales.
Why: Salt & Pepper’s shiny new space, complete with liquor license.
When: Sat., 6-9 p.m.
Where: E. Passyunk Ave., b/t Dickinson & McKean Sts. Admission is free.

Photo: Courtesy of Love Me Do